Acorn Energy, Inc. (ACFN) 10-K Annual Report March 2022

Cover - USD ($) $ in Millions	12 Months Ended
Cover - USD ($) $ in Millions	Dec. 31, 2021	Mar. 28, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Current Fiscal Year End Date	--12-31
Entity File Number	001-33886
Entity Registrant Name	ACORNENERGY, INC.
Entity Central Index Key	0000880984
Entity Tax Identification Number	22-2786081
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	1000 N West Street
Entity Address, Address Line Two	Suite 1200
Entity Address, City or Town	Wilmington
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19801
City Area Code	410
Local Phone Number	654-3315
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 17.3
Entity Common Stock, Shares Outstanding		39,687,589
Documents Incorporated by Reference	None
ICFR Auditor Attestation Flag	false
Auditor Firm ID	711
Auditor Name	Friedman LLP
Auditor Location	Marlton, New Jersey

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Financial Statements, Disclosures and Schedules

Inside this 10-K Annual Report

Material Contracts, Statements, Certifications & more

Acorn Energy, Inc. provided additional information to their SEC Filing as exhibits

Exhibit 10.7: Material Contract

Exhibit 21.1: Subsidaries Of The Registrant

Exhibit 23.1: Consents Of Experts And Counsel

Exhibit 31.1: Rule 13A-14(A)/15D-14(A) Certification

Exhibit 31.2: Rule 13A-14(A)/15D-14(A) Certification

Exhibit 32.1: Section 1350 Certification

Exhibit 32.2: Section 1350 Certification

Ticker: ACFN
CIK: 880984
Form Type: 10-K Annual Report
Accession Number: 0001493152-22-008225
Submitted to the SEC: Wed Mar 30 2022 9:01:18 PM EST
Accepted by the SEC: Thu Mar 31 2022
Period: Friday, December 31, 2021
Industry: Engineering Services